<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <div>{{msg}}</div>
        <button>点击</button>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14"></script>
    <script>
        let vm=new Vue({
            el:"#app",
            data:{
                msg:'你好'
            },
            methods:{
                get(){
                    return this.msg
                }
            }
        })
    </script>
</body>
</html>